﻿#include<iostream>
using namespace std;
class Date
{
public:
	Date(int year = 1, int month = 1, int day = 1)
	{
		_year = year;
		_month = month;
		_day = day;
	}
	// void Print(const Date* const this) const
	void Print() const
	{
		cout << _year << "-" << _month << "-" << _day << endl;
	}
private:
	int _year;
	int _month;
	int _day;
};
int main()
{
	// 这⾥⾮const对象也可以调⽤const成员函数是⼀种权限的缩⼩
	Date d1(2024, 7, 5);
	d1.Print();
	const Date d2(2024, 8, 5);
	d2.Print();
	return 0;
}